Parasympathetic Pathway to
Thoracic Viscera
Thoracic Viscera
| Show Pathway | Trace Pathway |
Origin: parasympathetic nucleus of the vagus nerve
(nucleus ambiguus for cardiac preganglionic neurons)
(nucleus ambiguus for cardiac preganglionic neurons)
ORIGIN (click to reveal)
Preganglionic Pathway:
left/right vagus nerve,
left/right vagus nerve,
Preganglionic Pathway
vagosympathetic trunk & vagus nerve (in thoracic cavity)
Preganglionic Pathway
vagal branches to heart & lungs, etc.
Preganglionic Pathway
Ganglion: terminal ganglia (within organs innervated)
Autonomic GANGLION (Synapse)
Postganglionic Pathway:
microscopic nerve plexuses within organs
microscopic nerve plexuses within organs
Postganglionic Pathway
Target Organs:
heart (nucleus ambiguus preganglionic origin);
lungs: bronchial smooth muscle
smooth mucle of the esophagus & trachea.
heart (nucleus ambiguus preganglionic origin);
lungs: bronchial smooth muscle
smooth mucle of the esophagus & trachea.
TARGET ORGANS
(click to reveal)
(click to reveal)
Pathway Image
(click to reveal)
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